Cellar Cool 3500 Evaporator User manual

WALL-MOUNTED & FULLY DUCTED
VERSION 4
TECHNICIAN’S MANUAL
24V Thermostat Conversion Kit Option
NOTICE: To activate the split system warranty,
the installing certied HVAC/R service tech
must complete the split system warranty
checklist and send back to CellarCool.

Copyright © 2019. CellarCool. All rights reserved.
CellarCool copyrights this manual, the product design, and the design concepts, with all rights reserved. Your rights with
regard to the hardware and manual are subject to the restrictions and limitations imposed by the copyright laws of the
USA. Under copyright laws, this manual may not be copied, reproduced, translated, transmitted, or reduced to any printed
or electronic medium or to any machine-readable form, for any purpose, in whole or in part, without the written consent
of CellarCool.
Every effort has been made to ensure that the information in this manual is accurate. CellarCool is not responsible for
printing or clerical errors.
CellarCool reserves the right to make corrections or improvements to the information provided and to the related
hardware at any time, without notice.
Vinothèque and CellarCool are registered trademarks, and ECE is a trademark of CellarCool. All rights reserved.
Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a
recommendation. CellarCool assumes no liability with regard to the performance or use of these products.
We manufacture, test and certify 100% of our wine cooling units in
the USA. By sourcing the best components and closely controlling our
manufacturing processes, we can assure the highest-quality,
lowest defect manufacturing rates in the industry.
Conforms to ANSI/UL Std 427
Certied to CAN/CSA Std C22.2 No. 120

TABLE OF CONTENTS
Introduction ............................................................. 2
Quick Start Guide ........................................................ 3
Before You Start .......................................................... 4
Receiving & Inspecting the System ........................................ 5
Quick Reference Guide
Evaporator Unit ........................................................ 6
3500 Wall-Mounted Unit Specications................................... 7
3500 Fully Ducted Unit Specications .................................... 8
5000 Wall-Mounted Unit Specications .....................................9
5000 Fully Ducted Unit Specications......................................10
Evaporator Unit Installation
24V Thermostat Kit Wiring Instructions .................................. 12
Preparing the Evaporator Unit .......................................... 13
Installing the Evaporator Unit .......................................... 14
Drain Line................................................................ 16
Preparing the Fully Ducted Evaporator Unit................................ 17
Wiring Diagrams
WM/FD Evaporator.................................................... 19
3500/5000 Condensing Unit ........................................... 20
Copeland Cold Weather Start Kit ....................................... 21
Preparing the Condensing Unit ........................................... 22
Installing the Condensing Unit ............................................ 23
Line Set Piping Diagrams ................................................. 28
Installing the Wall Mount Kit/Ducted Plenum .............................. 31
System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Maintenance Schedule ................................................... 33
CellarCool Troubleshooting Guide......................................... 36
Bypass Test Procedure .................................................... 41
Technical Assistance & Accessories ........................................ 42
Installation Terms and Conditions ......................................... 43

Page 2 1-855-235-5271 WM&FD 051019
WARRANTY REGISTRATION
In order to activate the warranty of your system, the verication and operational
documentation must be completed by the certied refrigeration technician
installing your system and submitted via mail, fax, or e-mail.
Mail to:
CellarCool
ATTN: Warranty Registration
1738 E. Alpine Avenue
Stockton, CA 95205-2505
USA
Fax to:
209-466-4606
Scan and email to:
[e-mail]
INTRODUCTION
Customer Service
Thank you for purchasing a CellarCool cooling system. We strive to provide the highest-quality products and the best possible
customer service. If you have any questions about your system, please call us at 1-800-343-9463 or visit cellarcool.com.
Using the Manual
This owner’s manual is intended to assist in the proper maintenance of the cooling system. In order to ensure the longevity of
your cooling unit, the equipment should be installed as outlined in the technician’s manual. It is also vital to establish a proper
care and maintenance schedule. Please read and review this manual carefully and keep it for future reference.
What is the CellarCool Cooling System?
The CellarCool cooling system is a specialized refrigeration system designed for one purpose only: to maintain the optimal
temperature and humidity levels conducive to the proper storage and aging of ne wines. This system produces minimal in-cellar
noise and has the most lenient exhaust requirements. An exterior housing is required for outdoor condensing unit installations.
How Does the Cooling System Work?
Similar to the air conditioning systems used for homes, the evaporator unit (fan coil unit) and condensing units are installed
in separate locations and are connected by a refrigerant line set. The evaporator portion is commonly installed in the wine
cellar, with the condensing unit is located either outside or in a remote indoor location that is ventilated. An exterior housing is
required for outdoor condensing unit installations.
Temperature Setting
The system is designed to maintain a cellar temperature of 55°F as long as the ambient temperature does not exceed 110°F.

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WM & FD SERIES
Pump Down Cycle
CellarCool’s split systems operate on a pump down cycle dierent from traditional air conditioners. As such, there is no wiring
between the condensing unit and evaporator unit.
CellarCool units utilize a solenoid valve on the liquid line and a low-pressure switch on the suction line. When the thermostat calls
for cooling, the solenoid valve opens, permitting the ow of refrigerant. The low-pressure switch then signals the compressor to
cycle on.
When the cellar reaches the desired temperature and the thermostat is satised, the solenoid will close, stopping the liquid
refrigerant ow to the TXV valve. The compressor will continue to operate until most of the refrigerant on the low side boils o
and is pumped through the compressor into the condenser coil and receiver. As the suction pressure falls below the pressure
control setting, the low-pressure switch will signal the compressor to cycle o. Most of the refrigerant is now stored between the
condensing unit and receiver.
…………………………………………………………………………………………………
WARNING: Do not utilize a ground fault interrupter, as it will prevent
the unit from drawing the necessary amperage to start the unit.
QUICK START GUIDE*
TXV Adjustments
A. A TXV adjustment may be necessary based on ambient temperatures in the cellar and at the condensing unit.
B. Adjust the TXV until the total superheat measured at the suction line service valve is 20-30°F.
C. Under normal operation, with the wine cellar at 55°F and the ambient temperature at 85°F, the low side pressure should be
between 28-32 PSI and the high side should be between 145-155 PSI.
*Further system operation information is available on page 32.
Liquid Line King Valve
This location is used to charge the system with liquid refrigerant
and identify the high side pressure of the system.
Calculating Subcooling
To determine the subcooling of the system, calculate the dierence
between the high side pressure of the system (converted to
temperature) and the temperature of the liquid line. The temperature
of the liquid line will be taken at the outlet of the receiver.
*Saturation temp — liquid line temp
4-6°F SUBCOOLING REQUIRED FOR WARRANTY APPROVAL
TXV
The TXV is preadjusted at the factory. If the superheat is not within
20-30° at the service valve, the TXV will need to be adjusted.
ADJUSTING THE TXV
Use a ⁄” hex key to remove the cap from the TXV superheat
adjustment port. With the cap removed, insert the hex key into
the superheat adjustment port. Increase superheat by turning the
hex key clockwise. Decrease superheat by turning the hex key
counterclockwise.

Page 4 1-855-235-5271 WM&FD 051019
BEFORE YOU START 1-800-343-9463
1. Inspect all components prior to installation. If damage is found, please contact your distributor or CellarCool Customer
Service at 1-800-343-9463.
2. The evaporator unit requires a dedicated 115V, 15-amp circuit. The 3500 condensing unit requires a dedicated 115V, 15-
amp circuit. The 5000 condensing unit requires a dedicated 115V, 20-amp circuit. Use a surge protector with the unit. Do
not use a GFI (ground fault interrupter) line.
3. No communication cable is required between the evaporator and condensing unit.
4. You are REQUIRED to install a drain line to remove condensation from the evaporator unit.
5. The warranty is not active until a warranty checklist has been received, reviewed, and approved.
6. The system is intended for use in properly designed and constructed wine cellars. Hire a professional wine storage
consultant with a valid contractor’s license to build your wine cellar.
7. CellarCool requires that all split systems be installed by a certified HVAC-R technician only. NATE or equivalent is recommended.
If you encounter a problem with your CellarCool system, please refer to the Troubleshooting Guide. If you have any further
questions or concerns, or need assistance, please contact CellarCool’s Customer Service at 1-800-343-9463. Please be sure all
testing has been completed prior to contacting Customer Service. Please have your results ready for your representative.

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WM & FD SERIES
Evaporator installation hardware bag:
• (2) ½” x ½” nylon barbed tting
• (1) ½” barbed tee
• (1) Double-D strain relief
• (4) ¾” adhesive cable tie mounts
• (2) Small cable ties
• (4) #8 x 1¾” hex-head screws
RECEIVING & INSPECTING THE SYSTEM
Please leave the unit in its original box until you are ready for installation. This will allow you to move the product safely without
damaging it. When you are ready to remove the product from the box, refer to the installation instructions.
TIP: Save your box and all packaging materials. They provide the only safe means of transporting/shipping the unit.
(1) Filter grille
(1) Duct plenum
Wall-Mounted Accessory Kit
Ducted Accessory Kit
(1) WM/FD evaporator unit
(1) Condensing unit
Main Evaporator Box
Main Condensing Unit Box
• Use caution when lifting and check package for damage.
• Lift only at the designated hand-hold locations on the shipping container, or fully support the unit from underneath. A
shipment may include one or more boxes containing accessories.
• Before opening the container, inspect the packaging for any obvious signs of damage or mishandling.
• Write any discrepancy or visual damage on the bill of lading before signing.
• Allow the condensing unit to sit for 24 hours prior to start-up. The condensing unit can be placed in the installation
location, piped, and evacuated during this time.
NOTE: CellarCool units are manufactured in the USA and tested prior to shipment.
• Review the packing slip to verify contents.
• Check the model number to ensure it is correct.
• Check that all factory options ordered are listed.
If any items listed on the packing slip do not match your order information,
contact CellarCool Customer Service immediately.
Check all shipped boxes for the following contents:
Documentation bag:
• WM/FD Version 3 owner’s manual
• WM/FD Version 3 technician’s manual
• R-134a split system warranty checklist
Condensing unit accessory kit:
• (1) Filter drier
• (1) Sight glass
(1) WM/FD Evaporator Wall-Mounting Template

Page 6 1-855-235-5271 WM&FD 051019
QUICK REFERENCE GUIDE
Filter grille
Evaporator unit
Thermostat wire routing for
optional 24-volt thermostat
(NOT INCLUDED)
INSIDE CELLAR
Option 2
THROUGH THE WALL
Option 1
Knockout for wiring
Knockout for wiring
Knockout for drain line
Line set knockout
Mounting keyholes (4)
Line set knockout
Knockout for drain line
Front / Side View
Rear / Side View

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WM & FD SERIES
WALL-MOUNTED UNIT SPECIFICATIONS
Filter grille
Evaporator unit (fan coil unit)
*Each cellar is unique and has specic cooling requirements. Heat load calculations should always be performed prior to selecting a cooling unit.
Model 3500 Evaporator
(Fan Coil Unit)
3500 Condenser
(Air-Cooled Condensing Unit)
Cellar Size Approx. 1000 cu. ft., provided cellar is fully insulated and sealed with proper vapor barrier*
BTU/h w/85°F air
entering condenser coil 3650
Dimensions 16.1”L x 20.5”W x 15.5”H 16.08”L x 16.23”W x 12.61”H
Refrigerant R-134a
HP 1/3
Voltage Rating 115V (15-amp dedicated circuit required) 115V (15-amp dedicated circuit required)
Weight (lbs) 60 60
Amps Evaporator: 1 (running amps), compressor: LRA 43, RLA 8
Line Set Liquid line: ¼" ; suction line: ½" (less than 50 ft.), ⁄" (greater than 50 ft.)
Drain Line ½”ID clear plastic tubing (not provided)
Installation Evaporator unit is installed in the cellar. Condensing unit is installed up to 100 feet from evaporator
unit. Allow for adequate airow.
Thermostat Aftermarket (24V thermostat not included)
Temp. Delta Can maintain a 55°F temperature dierential with up to 110°F condenser air intake temperature
Warranty Two-year limited warranty (parts and labor)

Page 8 1-855-235-5271 WM&FD 051019
FULLY DUCTED UNIT SPECIFICATIONS
Duct plenum
Return air
Supply air
*Each cellar is unique and has specic cooling requirements. Heat load calculations should always be performed prior to selecting a cooling unit.
Model 3500 Evaporator
(Fan Coil Unit)
3500 Condenser
(Air-Cooled Condensing Unit)
Cellar Size Approx. 1000 cu. ft., provided cellar is fully insulated and sealed with proper vapor barrier*
BTU/h w/85°F air
entering condenser coil 3120
Dimensions 20.1”L x 20.5”W x 15.5”H 16.08”L x 16.23”W x 12.61”H
Refrigerant R-134a
HP 1/3
Voltage Rating 115V (15-amp dedicated circuit required) 115V (15-amp dedicated circuit required)
Weight (lbs) 60 60
Amps Evaporator: 1 (running amps), compressor: LRA 43, RLA 8
Line Set Liquid line: ¼" ; suction line: ½" (less than 50 ft.), ⁄" (greater than 50 ft.)
Duct Size 8" supply, 10" return
Drain Line ½”ID clear plastic tubing (not provided)
Installation Evaporator can be installed up to 25 duct feet away from cellar. Condensing unit can be installed up to
100 line feet from evaporator unit.
Thermostat Aftermarket (24V thermostat not included)
Temp. Delta Can maintain a 55°F temperature dierential with up to 110°F condenser air intake temperature
Warranty Two-year limited warranty (parts and labor)

www.cellarcool.com | Page 9
WM & FD SERIES
WALL-MOUNTED UNIT SPECIFICATIONS
Filter grille
Evaporator unit (fan coil unit)
Model 5000 Evaporator
(Fan Coil Unit)
5000 Condenser
(Air-Cooled Condensing Unit)
Cellar Size Approx. 1750 cu. ft., provided cellar is fully insulated and sealed with proper vapor barrier*
BTU/h w/85°F air
entering condenser coil 5211
Dimensions 16.1”L x 20.5”W x 15.5”H 16.08”L x 16.23”W x 12.61”H
Refrigerant R-134a
HP 1/3+
Voltage Rating 115V (15-amp dedicated circuit required) 115V (20-amp dedicated circuit required)
Weight (lbs) 60 60
Amps Evaporator: 1 (running amps), compressor: LRA 50, RLA 9.3
Line Set Liquid line: ¼" ; suction line: ½" (less than 50 ft.), ⁄" (greater than 50 ft.)
Drain Line ½”ID clear plastic tubing (not provided)
Installation Evaporator unit is installed in the cellar. Condensing unit is installed up to 100 feet from evaporator
unit. Allow for adequate airow.
Thermostat Aftermarket (24V thermostat not included)
Temp. Delta Can maintain a 55°F temperature dierential with up to 110°F condenser air intake temperature
Warranty Two-year limited warranty (parts and labor)
*Each cellar is unique and has specic cooling requirements. Heat load calculations should always be performed prior to selecting a cooling unit.

Page 10 1-855-235-5271 WM&FD 051019
FULLY DUCTED UNIT SPECIFICATIONS
Duct plenum
Return air
Supply air
Model 5000 Evaporator
(Fan Coil Unit)
5000 Condenser
(Air-Cooled Condensing Unit)
Cellar Size Approx. 1750 cu. ft., provided cellar is fully insulated and sealed with proper vapor barrier*
BTU/h w/85°F air
entering condenser coil 3788
Dimensions 20.1”L x 20.5”W x 15.5”H 16.08”L x 16.23”W x 12.61”H
Refrigerant R-134a
HP 1/3+
Voltage Rating 115V (15-amp dedicated circuit required) 115V (20-amp dedicated circuit required)
Weight (lbs) 60 60
Amps Evaporator: 1 (running amps), compressor: LRA 50, RLA 9.3
Line Set Liquid line: ¼" ; suction line: ½" (less than 50 ft.), ⁄" (greater than 50 ft.)
Duct Size 8" supply, 10" return
Drain Line ½”ID clear plastic tubing (not provided)
Installation Evaporator can be installed up to 25 duct feet away from cellar. Condensing unit can be installed up to
100 line feet from evaporator unit.
Thermostat Aftermarket (24V thermostat not included)
Temp. Delta Can maintain a 55°F temperature dierential with up to 110°F condenser air intake temperature
Warranty Two-year limited warranty (parts and labor)
*Each cellar is unique and has specic cooling requirements. Heat load calculations should always be performed prior to selecting a cooling unit.

www.cellarcool.com | Page 11
WM & FD SERIES
SPLIT SYSTEM CHECK LIST
In order to activate the warranty for this product, the information here must be complete and accurate. Any
incorrect or omitted information will result in a return trip by the installing technician at their cost.
NOTE: All readings need to be taken while the compressor is running.
DATA RECORDINGS
Line Set Information
A. Line set length:
B. Suction line OD:
C. Liquid Line OD:
Sub Cooling
A. Measure head pressure at liquid line king valve. Convert pressure to temp using conversion chart.
B. Temp of liquid line at king valve:
C. Complete sub cooling calculation: A – B =
Superheat
A. Measure suction pressure at the suction line service valve, convert to temp.
B. Measure the temperature of the suction line at the outlet of the evaporator.
C. Complete superheat calculation: A – B =
NOTE: There may be a need to adjust the TXV to get the correct superheat levels.
Temperature Dierential at the Evaporator
A. Measure return air and supply air temperatures at the evaporator to ensure adequate cooling of air in cellar.
Voltage and Amp Draw
A. Measure voltage to compressor and amp draw.
Charging the System
A. Fill system until bubbles dissipate from sight glass.
NOTE: Be careful not to overcharge the system.
Compressor Temperature
A. Measure temperature at bottom of compressor.
NOTE: Cool temp may indicate liquid in the compressor.
Condensation Drain Test
A. Pour water into the drain pan to assure it drains properly.

Page 12 1-855-235-5271 WM&FD 051019
24V THERMOSTAT CONVERSION KIT WIRING INSTRUCTIONS
The 24V Thermostat Conversion Kit requires a standard 18-5 thermostat wire to be run from the evaporator unit to the
thermostat. The white wire will not be used, as there is no heating function. (Some thermostats need a common wire and some
do not; the unit is equipped with a common wire if needed.)
If the system is equipped with the Cold Weather Start Kit a standard 18-2 thermostat wire must be run between the evaporator
unit and the condensing unit.
24V Wiring Connections (Evaporator)
1. Route a standard 18-5 thermostat wire into the evaporator unit.
2. Locate the wire thermostat connection cable inside of the evaporator unit.
3. Connect the wires according to color (yellow to yellow, red to red, green to green, and blue to blue).
4. If the system is equipped with a Cold Weather Start Kit, connect one wire from the 18-2 thermostat wire to the low-voltage
yellow wires (2). Then connect the other 18-2 wire to the blue low-voltage wires (2).
Thermostat Wiring Connections
Follow the thermostat installation instructions. NOTE: The white wire will not be used, as there is no heating function.
NOTE: To ensure correct system operation, the
24V thermostat must be placed inside the
wine cellar, preferably in a central location
away from any airow.
R/RC
Y
G
C
Thermostat
Evaporator Unit
Condensing Unit
Grey (13)
Purple (12)
Cold Weather Start Kit Wiring Connections
If the system is equipped with a cold weather start
kit, connect one of the 18-2 thermostat wires to the
purple #12 wire. Connect the other 18-2 wire to the
grey #13 wire.

www.cellarcool.com | Page 13
WM & FD SERIES
PREPARING THE EVAPORATOR (FAN COIL) UNIT
Thermostat wire routing for 24V thermostat
(NOT INCLUDED)
Power
3/8” Suction
1/4” Liquid
Drain
Drain Pan
• Drill
• ⁄” drill bit
• ¼” socket drill bit
• ¼” wrench
• Phillips-head screwdriver
• Tape measure
• Brazing torch
• Drywall saw
• Ladder
• Level
• Pliers
• Pencil
Required Tools:
Strain
Relief
Thermostat
Wire
Unit
Panel
1. Remove the knockouts for the drain line, line set, and
electrical on the bottom or rear of the unit, depending
on your installation preference.
2. Remove the insulation from the knockout holes.
3. For ease of installation, remove the nine (9) screws
securing the top and remove the top.
4. Install strain relief around thermostat wires if routed
through the circular connector hole in the bottom
corner (see illustration).

Page 14 1-855-235-5271 WM&FD 051019
INSTALLING THE WALL-MOUNTED EVAPORATOR UNIT
1/8”
WALL
STUD
1. Locate two (2) wall studs in the desired mounting location spaced 16” on center.
2. Mark vertical lines on each stud 16” apart.
3. Mark an intersecting horizontal line at the desired height of the unit.
4. Make a mark on each stud 13½” down from the intersection of the horizontal and vertical lines.
NOTE: The top of the unit must be installed a minimum of 6” and a
maximum of 18” from the ceiling.
5. Install the four (4) supplied 1¾”hex head
screws into the studs at the locations marked
leaving ⁄”between the wall surface and
screw head.
6. If routing through a wall, cut out an access
hole for the line set, drain line, and power wires.
7. Raise the evaporator to the installation location. Align the rear key
holes with the mounting screws and mount the unit.
8. Using a ¼”wrench or socket, tighten the top mounting screws.
9. Using ¼”and ½”copper tubing, route the liquid and suction lines
through the knockouts in the housing. Be sure to extend the
tubing far enough outside of the housing to extend through the
wall if necessary. NOTE: ½”copper tubing will slip over the ⁄”
suction line on the evaporator for an easy connection.
10. Remove the solenoid coil and wrap the solenoid valve in a wet rag
to prevent overheating.
11. To prevent oxidation, purge the system with nitrogen.
12. Braze the copper tubing to the connections on the evaporator
unit.
°
F
Refer to the Wall-Mounted Evaporator Unit Installation Template for more information about mounting the wall-mounted
evaporator unit.

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WM & FD SERIES
13. Insulate the suction line using Armaex or similar insulation.
14. Using the cable ties and cable tie mounts provided, secure the drain line to the bottom of the housing to ensure a downward
slope.
15. Route the power wires into the unit through the knockout.
16. Following the supplied wiring diagram on page 12, connect thermostat wires.
17. Connect the green wire to the green wire, the black wire to the black wire, and the white wire to the white wire.
18. Install the supplied black strain relief to secure the power wires in the housing.
19. Secure all wiring neatly and as close to the left wall as possible in order to minimize airow obstruction.

Page 16 1-855-235-5271 WM&FD 051019
Routing the tubing out of the unit:
Cut a small piece of ½” tubing and connect one
end to the drip tray port and the other to a
90-degree fitting. (This will direct the tubing
toward the back of the unit where the tube will
exit the unit.) Be sure to extend the tubing far
enough outside the housing to extend through
the wall if necessary.
If routing out of the rear: Cut a piece of tubing
long enough to protrude out of the knockout on
the back side of the unit.
If routing out of the bottom: Cut a piece of
tubing long enough to reach the knockout in
the bottom of the unit and install the supplied
90-degree fitting. (This will direct the tubing out
of the bottom of the unit without the risk of
kinking the tubing.) DO NOT USE TEE WHEN
ROUTING OUT OF THE BOTTOM.
Routing to discharge location if routed out
of the bottom:
Connect the drain line directly to the second
90-degree barb fitting previously installed. Route
the drain line to an appropriate drain location.
No tee is required if draining through the
bottom of the unit.
NOTE: The fitting should be placed
vertically with the 3” cutout facing
up.
Failure to install the drain line
voids the warranty.
To prevent mold from growing,
allow the drain line to hang
above the water line.
WRONG: Drain line is under water.
DRAIN LINE
Drain Line
All systems come with a drain line connection tee and two 90-degree fittings. The unit is equipped with a ½” OD barbed fitting
coming from the drip tray. (NOTE: ½” ID clear PVC tubing will need to be purchased and installed by the installing technician.)
Installation of the drain line is mandatory, whether it leads through the wall and out of the cellar or remains inside the cellar.
During operation, the cooling system will strip excess water from the air in order to maintain the proper level of humidity within
the cellar. However, in extreme humidity, additional condensate will be removed; thus the drain line will prevent overflow and
leakage by discharging the excess condensate.
Condensation Drain Line (not provided, but required)
The condensation drain line tube moves excess condensation from the evaporator unit to a proper discharge
location. It is important for the drain line tube to be properly connected in order to prevent leakage and other problems associ-
ated with excess condensation.
Failure to use the condensation drain line tube will void the warranty on the unit.
Routing to discharge location if routed out of the rear:
Insert the middle barb of the barbed tee fitting into the end of the drain
line coming from the evaporator. Rotate fitting so tee is in the orientation
shown in the diagram below. Connect a 3-inch piece of ½” drain line to
the barb on top. Connect the remaining “long” piece of drain tubing to
the bottom barb of the tee. Route the drain line to an appropriate drain
location.

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WM & FD SERIES
PREPARING THE FULLY DUCTED EVAPORATOR UNIT
Thermostat wire routing for optional
24V thermostat conversion kit
(THERMOSTAT NOT INCLUDED)
Strain
Relief
Thermostat
Wire
Unit
Panel
1. Remove the knockouts for the drain line,
line set, and electrical on the bottom
or rear of the unit (depending on your
installation location).
2. Remove the insulation from the knockout
holes.
3. Install strain relief around thermostat wires
if routed through the circular connector
hole in the bottom corner of the housing.
Power
Line set
Drain line

Page 18 1-855-235-5271 WM&FD 051019
INSTALLING THE FULLY DUCTED EVAPORATOR
1. Using ¼”and ½”copper tubing, route the liquid and suction lines through the knockouts in the housing. Be sure to extend
the tubing far enough outside of the housing to extend through the wall if necessary. NOTE: ½”copper tubing will slip over
the ⁄” suction line on the evaporator for an easy connection.
2. Remove the solenoid coil and wrap the solenoid valve in a wet rag to prevent overheating.
3. To prevent oxidation, purge the system with nitrogen.
4. Braze the copper tubing to the connections on the evaporator unit.
5. Insulate the suction line using Armaex or similar insulation.
6. Using the cable ties and cable tie mounts provided, secure the drain line to the bottom of the housing to ensure a
downward slope.
7. Route the power wires into the unit through the knockout.
8. Remove the wire nuts from the black, white, and green wires located in the lower left corner of the evaporator unit.
9. Following the supplied wiring diagram on page 12, connect thermostat wires.
10. Connect the green wire to the green wire, the black wire to the black wire, and the white wire to the white wire.
11. Install the supplied black strain relief to secure the power supply wires in the housing.
12. Secure all wiring neatly and as close to the left wall as possible in order to minimize airow obstruction.